Research Expertise and Interest
physical chemistry, climate, air pollution, atmospheric chemistry, environmental chemistry, analytical chemistry, ozone, nitrogen oxides, CO2, clouds
Ronald Cohen's research aims to describe and understand the connections between human activities, greenhouse gas emissions and poor air quality. In his research project, BEACO2N, he and his team are building a neighborhood scale long-term observing system for tracking CO2 and air quality: www.beacon.berkeley.edu. This project was one of three “Climate Data in Action” efforts recognized in the Obama administration’s Climate Data Initiative in summer 2014. The project is following trends in CO2 and related gases and aerosol in cities including the Bay Area and Los Angeles in California, Providence, RI and Glasgow, Scotland. The project is reporting on trends in CO2 emissions with short lag times, km scale resolution and the ability to pinpoint emissions by economic sector. His fundamental chemical research on organic nitrates established that these molecules are the main path for removal of atmospheric nitrogen oxides on the continents. His research using satellite measurements of nitrogen oxides has established new methods for achieving accurate interpretation of trends in urban chemistry: http://behr.cchem.berkeley.edu/. He has published extensively on the links between high temperatures and poor air quality--identifying key aspects of atmospheric chemistry that are unimportant most of the time but play the primary role in governing what people are breathing when it is hot.